Results 31 to 40 of about 2,213,037 (292)

Measuring soot particles from automotive exhaust emissions [PDF]

EPJ Web of Conferences, 2014
The European Metrology Research Programme participating countries and the European Union jointly fund a three year project to address the need of the automotive industry for a metrological sound base for exhaust measurements. The collaborative work on particle emissions involves five European National Metrology Institutes, the Tampere University of ...
Andres Hanspeter, Lüönd Felix, Schlatter Jürg, Auderset Kevin, Jordan-Gerkens Anke, Nowak Andreas, Ebert Volker, Buhr Egbert, Klein Tobias, Tuch Thomas, Wiedensohler Alfred, Mamakos Athanasios, Riccobono Francesco, Discher Kai, Högström Richard, Yli-Ojanperä Jaakko, Quincey Paul   +16 more
openaire   +2 more sources

Effects of fuel composition and octane sensitivity on polycyclic aromatic hydrocarbon and soot emissions of gasoline–ethanol blend surrogates

, 2020
The sooting propensity of a fuel is closely coupled with the fuel composition and chemistry. A detailed understanding of their effects is, therefore, needed to develop next-generation fuels which can minimize particulate emissions.
Krishna C. Kalvakala, P. Pal, S. Aggarwal   +2 more
semanticscholar   +1 more source

Cloud condensation nuclei activity, closure, and droplet growth kinetics of Houston aerosol during the Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) [PDF]

, 2009
In situ cloud condensation nuclei (CCN) measurements were obtained in the boundary layer over Houston, Texas, during the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) campaign onboard the CIRPAS Twin Otter.
Dubey, Manvendra K., Feingold, Graham, Flagan, Richard C., Gates, Harmony, Jonsson, Haflidi H., Lance, Sara, Mazzoleni, Claudio, Murphy, Shane M., Nenes, Athanasios, Rissman, Tracey A., Seinfeld, John H., Sorooshian, Armin, Varutbangkul, Varuntida   +12 more
core   +2 more sources

Possibilities of Simultaneous In-Cylinder Reduction of Soot and NOx Emissions for Diesel Engines with Direct Injection

International Journal of Rotating Machinery, 2008
Up to now, diesel engines with direct fuel injection are the propulsion systems with the highest efficiency for mobile applications. Future targets in reducing CO2 -emissions with regard to global warming effects can be met with the help of these engines.
U. Wagner, P. Eckert, U. Spicher
doaj   +1 more source

2D CFD Simulation of Water Injection Strategies in a Large Marine Engine

Journal of Marine Science and Engineering, 2019
A two-dimensional computational fluid dynamics (2D CFD) simulation of a low-speed two-stroke marine engine simulation was performed in order to investigate the performance of 2D meshes that allow the use of more complex chemical schemes and pollutant ...
Tomislav Senčić, Vedran Mrzljak, Paolo Blecich, Igor Bonefačić   +3 more
doaj   +1 more source

Soot emissions of mutually synchronized candle flames

, 2023
Abstract The evolution of soot particles from steady flames is relatively well explored compared to the evolution of soot particles from oscillating flames. Therefore, the present study aims to characterize soot particles' size evolving from self-excited oscillating flames, which are produced from the burning of two bundles of candles (4 ...
Manikandan Balasubramaniyan, Nikhil Gaur, Kannan B T   +2 more
openaire   +1 more source

Influences on the fraction of hydrophobic and hydrophilic black carbon in the atmosphere [PDF]

, 2011
Black carbon (BC) is a short term climate forcer that directly warms the atmosphere, slows convection, and hinders quantification of the effect of greenhouse gases on climate change.
Coe, H., Good, N., McFiggans, G., McMeeking, G. R., Petters, M. D.   +4 more
core   +3 more sources

Chemical and physical properties of bulk aerosols within four sectors observed during TRACE-P [PDF]

, 2003
Chemical and physical aerosol data collected on the DC-8 during TRACE-P were grouped into four sectors based on back trajectories. The four sectors represent long-range transport from the west (WSW), regional circulation over the western Pacific and ...
Anderson, B E, Dibb, Jack E., Fuelberg, H, Hudgins, Charlie, Jordan, C., Kiley, C M, Russo, R. S., Scheuer, Eric, Seid, Garry, Talbot, R., Thornhill, K L, Winstead, E L   +11 more
core   +3 more sources

Numerical investigation of soot mass concentration in compression ignition diesel engine

Journal of Mechanical Engineering and Sciences, 2016
Soot particles, carbon monoxide, oxides of nitrogen, oxides of sulphur, and hydrocarbon are the emissions produced from diesel engine combustion. Those emissions species are undesirable since they give detrimental impacts to the atmosphere and human ...
F. Ibrahim, W.M.F. Wan Mahmood, S. Abdullah, M.R. Abu Mansor   +3 more
doaj   +1 more source

Char dominates black carbon aerosol emission and its historic reduction in China

Nature Communications, 2023
Emission factors and inventories of black carbon (BC) aerosols are crucial for estimating their adverse atmospheric effect. However, it is imperative to separate BC emissions into char and soot subgroups due to their significantly different ...
Junjie Cai, Hongxing Jiang, Yingjun Chen, Zeyu Liu, Yong Han, Huizhong Shen, Jianzhong Song, Jun Li, Yanlin Zhang, Rong Wang, Jianmin Chen, Gan Zhang   +11 more
doaj   +1 more source